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Rodríguez-Maese R, Cerdà V, Leal LO. An overview of automated flow systems for total and isotopic analysis of strontium and yttrium in samples of environmental interest. Talanta 2024; 270:125643. [PMID: 38199120 DOI: 10.1016/j.talanta.2024.125643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 12/27/2023] [Accepted: 01/06/2024] [Indexed: 01/12/2024]
Abstract
Due to the different uses of radioactivity during the last decades, there has been an increase in the concentration of natural and artificial radionuclides in the environment. This, along with some accidents with a high affect public opinion (for example, Chernobyl and Fukushima), have led to the growth and establishment of environmental radioactivity monitoring programs. Currently, trends in legislation and research are focused on the development of accurate, precise, reliable and fast analytical methods with low limits of detection (LOD) for radionuclides determination, such as strontium and yttrium, in environmental samples. In this paper, two comprehensive reviews and four automated analytical systems for total and isotopic determination of yttrium and strontium are presented. The developed methods have been applied in the analysis of environmental samples with low concentrations of these analytes. These methodologies have been automated by exploiting flow analysis techniques, such as multi-syringe flow injection analysis (MSFIA), Sequential injection analysis (SIA) and laboratory-on-valve (LOV) systems, achieving a minimal handling and low consumption of samples and reagents, a significant reduction in waste generation and a high frequency of analysis. In the developed methodologies, some spectrometric methods such as ICP-OES and ICP-MS have been implemented as detection techniques instead of radiometric detectors obtaining a fully automated, low-cost and fast yttrium and strontium determinations.
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Affiliation(s)
- Rogelio Rodríguez-Maese
- Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Av. Miguel de Cervantes #120, Complejo Industrial Chihuahua, Chihuahua, Chih, C.P. 31136, Mexico
| | - Víctor Cerdà
- Department of Chemistry, University of the Balearic Islands, 07122, Palma de Mallorca, Spain; Sciware Systems, S.L. 07193, Bunyola, Spain.
| | - Luz O Leal
- Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Av. Miguel de Cervantes #120, Complejo Industrial Chihuahua, Chihuahua, Chih, C.P. 31136, Mexico
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Grahek Ž, Coha I, Tucaković I. Radiostrontium determination by combination of automated Sr isolation and "on-column" Cherenkov detection using chromatographic model. J Chromatogr A 2023; 1706:464276. [PMID: 37562105 DOI: 10.1016/j.chroma.2023.464276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 06/19/2023] [Accepted: 08/02/2023] [Indexed: 08/12/2023]
Abstract
A novel analytical solution of non-linear chromatography in case of parabolic isotherm for frontal analysis was obtained by combination of Cole-Hopf and Laplace transform. It was used for simulation of strontium capturing on chromatographic column with aim to improve quantitative determination of low-level 90Sr activities. From the experimentally determined breakthrough curves, the retention factor and the number of theoretical plates were calculated using the Glueckauf and Wenzel relations and by fitting the breakthrough curves for the linear isotherm using MatLab. These were used to simulate the breakthrough curves using a parabolic isotherm solution where the non-linear term of the isotherm was taken as a small negative deviation of the retention factor. On the base of theoretical prediction and experimental data, procedure for automated capturing of strontium on chromatographic column with specific dimension and off line "on-column" Cherenkov detection on commercial ultra low-level liquid scintillation counter was developed. It was shown that analytical solution for parabolic isotherm in comparison with solution for linear isotherm gives better prediction of mass of captured Sr on column filled with small amount of Sr resin and SuperLig®620 in case of elevated Sr concentration, even when non-linear effect is not obvious. The solution also makes it possible to predict the mass of resin required for strontium isolation at 100% yield under given conditions. Considering the limited dimensions of the column, and consequently small mass of the resin in them, it resulted in the low efficiency of the columns, which, however, did not affect the yield in real conditions of isolation. The results have shown that the yields achieved after isolation on SuperLig®620 from real samples are 100%. In addition, it is shown that captured 90Sr can be detected through 90Y ingrowth, on column filled with strontium specific resin, with Cherenkov detection efficiency of at least 50%. The efficiency may be enhanced to 60%, depending on parameters which can affect detection efficiency change (type of column, resin type, surrounding solution, etc.). The developed procedures enable quantitative determination of 90Sr in natural water samples with MDAC below 12 mBq l-1 and solid (soil and vegetation) samples with MDAC below 6 Bq kg-1 within 2-3 days. The proposed solution may easily be implemented in radiochemical laboratories where this type of analysis is routinely done within environmental monitoring or other purposes.
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Affiliation(s)
- Željko Grahek
- Ruđer Bošković Institute, Bijenička cesta 54, Zagreb 10 000, Croatia
| | - Ivana Coha
- Ruđer Bošković Institute, Bijenička cesta 54, Zagreb 10 000, Croatia.
| | - Ivana Tucaković
- Ruđer Bošković Institute, Bijenička cesta 54, Zagreb 10 000, Croatia
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Zhou Z, Ren H, Zhou L, Wang P, Lou X, Zou H, Cao Y. Recent Development on Determination of Low-Level 90Sr in Environmental and Biological Samples: A Review. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010090. [PMID: 36615288 PMCID: PMC9821828 DOI: 10.3390/molecules28010090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
In the context of the rapid development of the world's nuclear power industry, it is vital to establish reliable and efficient radioanalytical methods to support sound environment and food radioactivity monitoring programs and a cost-effective waste management strategy. As one of the most import fission products generated during human nuclear activities, 90Sr has been widely determined based on different analytical techniques for routine radioactivity monitoring, emergency preparedness and radioactive waste management. Herein, we summarize and critically review analytical methods developed over the last few decades for the determination of 90Sr in environmental and biological samples. Approaches applied in different steps of the analysis including sample preparation, chemical separation and detection are systematically discussed. The recent development of modern materials for 90Sr concentration and advanced instruments for rapid 90Sr measurement are also addressed.
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Affiliation(s)
| | | | | | | | | | | | - Yiyao Cao
- Correspondence: ; Tel.: +86-(0571)-87115089
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Tucaković I, Karanović G, Coha I, Pavičić-Hamer D, Grahek Ž. Radionuclides in commercial children's food consumed in Croatia. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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5
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Dovhyi II, Bezhin NA. Sorption of gold(iii) from hydrochloric acid solutions by the sorbents based on benzo-15-crown-5. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3405-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Zhong N, Li L, Yang X, Zhao Y. Analytical Methods for the Determination of 90Sr and 239,240Pu in Environmental Samples. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27061912. [PMID: 35335276 PMCID: PMC8952015 DOI: 10.3390/molecules27061912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/15/2022] [Accepted: 02/22/2022] [Indexed: 11/16/2022]
Abstract
Artificial long-lived radionuclides such as 90Sr and 239,240Pu have been long released into the environment by human nuclear activities, which have a profound impact on the ecological environment. It is of great significance to monitor the concentration of these radionuclides for environmental safety. This paper summarizes and critically discusses the separation and measurement methods for ultra-trace determination of 90Sr, 239Pu, and 240Pu in the environment. After selecting the measurement method, it is necessary to consider the decontamination of the interference from matrix elements and the key elements, and this involves the choice of the separation method. Measurement methods include both radiometric methods and non-radiometric methods. Radiometric methods, including alpha spectroscopy, liquid scintillation spectrometry, etc., are commonly used methods for measuring 239+240Pu and 90Sr. Mass spectrometry, as the representative of non-radiometric measurement methods, has been regarded as the most promising analytical method due to its high absolute sensitivity, low detection limit, and relatively short sample-analysis time. Through the comparison of various measurement methods, the future development trend of radionuclide measurement is prospected in this review. The fully automatic and rapid analysis method is a highlight. The new mass spectrometer with ultra-high sensitivity shows strong analytical capabilities for extremely low concentrations of 90Sr, 239Pu, and 240Pu, and it is expected to develop determination methods with higher sensitivity and lower detection limit.
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Fast and Sensitive Radiochemical Method for Sr-90 Determination in Food and Feed by Chromatographic Extraction and Liquid Scintillation Counting. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-021-02191-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AbstractStrontium-90 (Sr-90) contamination in food is a major public health issue. Several radiochemical methods are available for the determination of Sr-90. However, the application of these procedures is not focused on solid foods, but only on liquid (milk, water, etc.) and environmental matrices, and they were not fully validated. The aims of this work were to establish and validate a fast, sensitive method for the determination of Sr-90 in solid food matrices such as meat and dairy products, seafood, vegetables, and animal feed, using a specific resin for extraction and ultra-low-level liquid scintillation counting for detection. The method was optimised and validated according to relevant legislation. Good analytical performance was obtained, including high specificity and linearity together with low measurement uncertainty (13.1%). The minimal detectable activity was 11 mBq kg−1, and the mean repeatability (CV%) and recovery values were 10.7% and 100.1%, respectively. These parameters assured method applicability for official food safety controls. The method was applied to reference materials and submitted to proficiency test round to confirm its reliability for Sr-90 quantification in solid foodstuffs and feed. The newly established method may be broadly applicable to complex matrices.
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Alam MF, Furusho Y, Kavasi N, Sahoo SK, Pirnach L, Begum ZA, Nanba K, Rahman IMM. Effect of operating variables on the separation of radiostrontium from aqueous matrices with ion-selective solid-phase extraction systems. J Chromatogr A 2021; 1658:462625. [PMID: 34695663 DOI: 10.1016/j.chroma.2021.462625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 11/30/2022]
Abstract
Radiostrontium (r-Sr: 90Sr) is one of the primary fission products in nuclear power plants and generates liquid radioactive waste when intermixed to the aqueous matrix. Therefore, separation or preconcentration of r-Sr from the aqueous matrices is necessary for environmental monitoring or nuclear forensics. The solid-phase extraction (SPE) approach is prevalently used for r-Sr isolation and to design matrix-specific methods, while generalized SPE-assisted operating protocols are not proposed by far. In the current work, four different SPEs, namely AnaLig Sr-01, Eichrom Sr, Triskem TK100, and Eichrom DGA, were evaluated for selective separation of Sr from aqueous matrices. Operating variables, e.g., solution acidity, washing solvent, eluent-type or volume, loading or elution flow-rate, were varied to optimize the SPEs performance. The objective was to ascertain the operating variables for maximum Sr-separation yield from aqueous environmental samples with the SPEs mentioned above. In addition, the Sr-separation efficiency of SPEs was evaluated by calculating the separation factor (SFSr/M) between Sr and interfering elements to r-Sr (M = Ca, Mg, Ba, or Y), and the Sr-retention capacity of the SPEs was determined. Finally, the optimized operating variables for the evaluated SPEs were used to construct protocols for r-Sr separation from aqueous matrices. Real 90Sr contaminated aqueous samples from the Chernobyl nuclear power plant cooling pond were treated by those protocols, and the results are validated comparing with the IAEA-recommended classical protocol. All the SPEs were able to isolate Sr at varying extents from matrices at the optimum conditions, even at much higher contents of interfering elements. Eichrom Sr or AnaLig Sr-01 showed better Sr-retention capability among the SPEs, while Triskem TK100 showed superiority over other SPEs regarding Sr-selectivity.
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Affiliation(s)
- M Ferdous Alam
- Graduate School of Symbiotic System Science and Technology, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan; Atomic Energy Research Establishment, Institute of Nuclear Science and Technology, Ganakbari, Savar, Dhaka 1344, Bangladesh.
| | - Yoshiaki Furusho
- GL Sciences Inc., 6-22-1 Nishi Shinjuku, Shinjuku-ku, Tokyo 163-1130, Japan
| | - Norbert Kavasi
- Environmental Radionuclide Research Group, Department of Radioecology and Fukushima Project, National Institute for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan; Department of Environmental Sciences, Jožef Stefan Institute, Jamova cesta 39, Ljubljana 1000, Slovenia
| | - Sarata Kumar Sahoo
- Environmental Radionuclide Research Group, Department of Radioecology and Fukushima Project, National Institute for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Lina Pirnach
- Department of Radiation Monitoring of the Environment, Ukrainian Hydrometeorological Institute, Prospekt Nauky 37, Kyiv 03028, Ukraine
| | - Zinnat A Begum
- Department of Civil Engineering, Southern University Bangladesh, Arefin Nagar, Bayezid Bostami, Chattogram 4210, Bangladesh; Institute of Environmental Radioactivity Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan
| | - Kenji Nanba
- Graduate School of Symbiotic System Science and Technology, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan; Institute of Environmental Radioactivity Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan
| | - Ismail M M Rahman
- Institute of Environmental Radioactivity Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan.
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Coha I, Dulanská S, Tucaković I, Grahek Ž. Synergy of flow injection system and molecular recognition technology products for rapid determination of 89,90Sr and 210Pb. Talanta 2021; 225:121959. [PMID: 33592714 DOI: 10.1016/j.talanta.2020.121959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/24/2020] [Accepted: 11/30/2020] [Indexed: 10/22/2022]
Abstract
A rapid, automated separation procedure was developed for radioactive strontium and lead isotope determination. This system includes a portable automated system for the preconcentration and sequential elution of targeting isotopes with an Na2H2EDTA solution from solid phase extraction materials, AnaLig®Sr-01 and SuperLig®620, provided by IBC Technologies. Strontium and lead were separated from the majority of matrix constituents to obtain pure fractions of Pb and Sr prior to radiometric detection. In case of barium presence, it can also be fully isolated and completely separated from Sr. The automated procedure can be successfully used for preconcentration and separation from high as well as low radioactivity samples. With only a 1 mL column filled with SuperLig®620, it is possible to isolate Sr and Pb with 100% recovery from 1 L to 2 L of sample at a flow rate of up to 10 mL min-1 within several hours. 89,90Sr isotopes can be further determined by Cherenkov counting, while 210Pb isotopes can be determined by either gamma spectrometry or liquid scintillation counter. The method was tested and validated using certified standard materials and proficiency test samples. The synergy of automated separation and detection procedures enables the determination of the low level activity of 90Sr and 210Pb in a short time with detection limits of 20 mBq L-1 for both isotopes. The proposed method enables lower labour costs, minimal size of apparatuses and columns, low separation time, and reduced secondary waste production. The automated procedure may be easily implemented in laboratories worldwide and can also be used at sampling sites.
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Affiliation(s)
- Ivana Coha
- Division for Marine and Environmental Research, Laboratory for Radioecology, Ruđer Bošković Institute, Zagreb, Croatia.
| | - Silvia Dulanská
- Institute of Medical Physics, Biophysics, Informatics and Telemedicine, Faculty of Medicine, Comenius University, Sasinkova 2, 813 72, Bratislava, Slovakia
| | - Ivana Tucaković
- Division for Marine and Environmental Research, Laboratory for Radioecology, Ruđer Bošković Institute, Zagreb, Croatia
| | - Željko Grahek
- Division for Marine and Environmental Research, Laboratory for Radioecology, Ruđer Bošković Institute, Zagreb, Croatia
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Rodríguez-Maese R, Ferrer L, Leal LO. Automatic multicommuted flow systems applied in sample treatment for radionuclide determination in biological and environmental analysis. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2020; 223-224:106390. [PMID: 32883535 DOI: 10.1016/j.jenvrad.2020.106390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 08/16/2020] [Indexed: 06/11/2023]
Abstract
The presence of artificial and natural radioactivity in the environment is currently a topic of great relevance and ecological interest, even in human health issue, due to the increase of different anthropogenic activities. The use of multicommuted flow analysis techniques (e.g. Multi-Syringe Flow Injection Analysis - MSFIA, Lab-On-Valve - LOV and Lab-In-Syringe - LIS) has allowed the automation of radiochemical procedures to separate and preconcentrate radionuclides in environmental and biological samples. In comparison with the manual approach commonly used in routine analysis for radioactivity monitoring, the automation has enabled the development of highly reproducible methodologies with a great analysis frequency. Moreover, during the analytical procedure, the intervention of the analyst is drastically reduced, minimizing the radiological risk. The automation also offers significant advantages such as minimum consumption of time and reagents, reducing the cost and the generation of waste, contributing to the green chemistry. In this review, several multicommuted flow analysis techniques (MSFIA, LOV and LIS) reported in the last decade applied for the development of automatic sample treatment methodologies, used to separate, preconcentrate and quantify 90Sr, 99Tc, natural U and 226Ra in biological and environmental samples are described and critically compared.
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Affiliation(s)
- Rogelio Rodríguez-Maese
- Environment and Energy Department, Advanced Materials Research Center (CIMAV) S.C., Miguel de Cervantes 120, Chihuahua, Chih. 31136, Mexico
| | - Laura Ferrer
- Environmental Radioactivity Laboratory, University of the Balearic Islands, Cra. Valldemossa km 7.5, 07122 Palma, Spain
| | - Luz O Leal
- Environment and Energy Department, Advanced Materials Research Center (CIMAV) S.C., Miguel de Cervantes 120, Chihuahua, Chih. 31136, Mexico.
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Dulanská S, Coha I, Silliková V, Goneková Z, Horváthová B, Nodilo M, Grahek Ž. Sequential determination of 90Sr and 210Pb in bone samples using molecular recognition technology product AnaLig® Sr-01. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Özçayan G. Determination of 90Sr activity concentration in black tea powder used as proficiency test sample by the modified liquid scintillation counting method. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2020; 211:106079. [PMID: 31666205 DOI: 10.1016/j.jenvrad.2019.106079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
Environmental monitoring is very important in nuclear facilities and its surroundings during the construction and operation. It requires many and different radioactivity measurements in order to radiation protection, radioactive waste management and environmental protection. An accurate and reliable determination of Strontium-90 in various environment matrices has been studied with many techniques such as co-precipitation, ion exchange, solvent extraction and extraction chromatography for environmental contamination monitoring purposes. In this study, the method used for dissolution and radiochemical separation to determine strontium-90 activity concentration in tea matrix used as proficiency test sample with liquid scintillation counter was investigated. As a result of these studies, the average mean activity concentration of strontium-90 in proficiency test material was determined as 155 ± 16 Bq kg-1 dry matter (k = 2) by liquid scintillation efficiency tracing (CIEMAT/NIST) method for seven selected samples. This value was also confirmed by Joint Research Center-Geel with the CIEMAT/NIST method. The proficiency test results for consistency were checked by Dioxon's Q-test. Uncertainties arising from counting statistics, background, weighing, half-life, chemical recovery, efficiency and homogeneity were calculated.
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Affiliation(s)
- Gülten Özçayan
- Turkish Atomic Energy Authority, Department of Radiation and Accelerator Technologies, Saray Mah, Atom Cad, No:27 06983 Kahramankazan, Ankara, Turkey.
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Gačnik J, Sarap NB, Mazej D, Prosen H, Štrok M. Liquid scintillation counter calibration approach for 90Sr detection and testing performance of TK100 resin. Appl Radiat Isot 2019; 151:111-115. [DOI: 10.1016/j.apradiso.2019.04.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 10/26/2022]
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Determination of 90Sr in environmental samples using solid phase extraction chromatography. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06546-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Vydysh AA, Dovhyi II, Bezhin NA. Impregnated type sorbents based on benzo-15-crown-5 for gold(III) extraction from hydrochloric solutions. Russ Chem Bull 2019. [DOI: 10.1007/s11172-018-2370-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Hou X. Liquid scintillation counting for determination of radionuclides in environmental and nuclear application. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-6258-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Kong X, Dang L, Shao X, Yin L, Ji Y. Rapid method for determination of 90Sr in biological samples by liquid scintillation counting after separation on synthesized column. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2018; 193-194:15-19. [PMID: 30172089 DOI: 10.1016/j.jenvrad.2018.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/28/2018] [Accepted: 08/17/2018] [Indexed: 06/08/2023]
Abstract
A simple, rapid and cost-efficient method for determination of activity concentration of 90Sr in biological samples with an extraction chromatographic column (crown ether on teflon powder) and following counted by liquid scintillation counting was developed in this paper. The column retained most of 90Sr while almost all of matrix ions were removed during rinsing steps with 8M nitric acid and finally 90Sr was eluted with deionized water, the chemical recovery of strontium is greater than 60%, almost all of matrix ions were removed by the procedure we reported. Finally the uncertainty was evaluated and minimum detectable activity of this method is 1.28Bq/kg.
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Affiliation(s)
- Xiangyin Kong
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, China
| | - Lei Dang
- Nuclear and Radiation Safety Center, Ministry of Ecology and Environment of the People's Republic of China, China
| | - Xianzhang Shao
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, China
| | - Liangliang Yin
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, China
| | - Yanqin Ji
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, China.
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Yankovskaya VS, Dovhyi II, Bezhin NA, Milyutin VV, Nekrasova NA, Kapranov SV, Shulgin VF. Sorption of cobalt by extraction chromatographic resin on the base of di-(tert-butylbenzo)-18-crown-6. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-6090-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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